Pith Number

pith:EZA53UVO

pith:2012:EZA53UVOLP7LVC6KCFG6UJKBI3

not attested not anchored not stored refs pending

Bounds for approximate discrete tomography solutions

Lajos Hajdu, Rob Tijdeman

arxiv:1207.3933 v1 · 2012-07-17 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZA53UVOLP7LVC6KCFG6UJKBI3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:50:49.466305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2641ddd2ae5bfeba8bca114dea254146e9d491a50956b7e39e4c81822287f558

Aliases

arxiv: 1207.3933 · arxiv_version: 1207.3933v1 · doi: 10.48550/arxiv.1207.3933 · pith_short_12: EZA53UVOLP7L · pith_short_16: EZA53UVOLP7LVC6K · pith_short_8: EZA53UVO

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EZA53UVOLP7LVC6KCFG6UJKBI3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2641ddd2ae5bfeba8bca114dea254146e9d491a50956b7e39e4c81822287f558

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "389720cd81912166ca4b05e51db4742e000230e5715c054d4e41a4b9657593b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-07-17T10:14:57Z",
    "title_canon_sha256": "773ed7e6f6dfbcec6c8328aa372874a0f2437c16fd5d38fa7d026e1c0a4eca85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3933",
    "kind": "arxiv",
    "version": 1
  }
}